That is now 3 polls which have it Stabenow +7. Clear tightening. With undecided voters probably are R or breaking toward James this is probably a 3-4 point race right now. James could actually outperform Schuette the way it is going.
Why would undecided voters be R? Undecideds usually break for the party out of power.
Not to mention even in all these polls, James is barely at 42-43.
Undecideds tend to break for the incumbent, which is Advantage Stabenow.
I actually thought undecideds tended to break for the challenger.
If undecideds truly broke for the challenger more often than not, we'd have President Romney, as well as Senators Mandel, Kander, McGinty, Ross, Mack IV, Smith (PA 2012), Hoekstra, Angle, O'Donnell, etc.